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International Baccalaureate Mathematics

Statistics and Probability

These are the Transum resources related to the statement: "The normal distribution and curve. Properties of the normal distribution. Diagrammatic representation. Normal probability calculations. Inverse normal calculations".

Here are some specific activities, investigations or visual aids we have picked out. Click anywhere in the grey area to access the resource.

Here are some exam-style questions on this statement:

Click on a topic below for suggested lesson starters, resources and activities from Transum.


If you would like to interact with the graph of the normal distribution you will find it waiting for you on the Graph Plotter page (you will need to rescale the axes).

Paranormal Distribution

The syllabus also mentions that students should be aware of the natural occurrences of the normal distribution. Students should be aware that approximately 68% of the data lies between one standard deviation above the mean and one standard deviation below the mean. Similarly 95% lies within two standard deviations of the mean and 99.7% lies within three.

If you use the TI-Nspire calculator you can find instructions for using the Normal CDF function on the GDC Essentials page.

How do you teach this topic? Do you have any tips or suggestions for other teachers? It is always useful to receive feedback and helps make these free resources even more useful for Maths teachers anywhere in the world. Click here to enter your comments.


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